radiac_detector

(Content from tech manual) Used to locate and measure radioactivity in the form of gamma rays and beta particles, Displays dose rates and total accumulated dose resulting from a fallout field. CHARACTERISTIC Lightweight Easy to use Battery operated Self-testing during operation or on demand by operator Autoranging CAPABILITIES Detects, measures, […]

Inside this black plastic block there is a gamma ray photosensitive glass film, using sensitometry to determine radiation intensity. AN/PDR-75 is the device reading it’s radiation intensity. Stock Number Reference: Name NSN Assigned Date Detector, Radiac 6665-01-043-2191 1977-06-21